Pneumatic pistol and gun



c. KING 7 PNEUMATIC PISTOL AND GUN March 16 ,1926. 1,576,749

Original Filed April 15, 1921 Patented Mar. 16, 1926.

UNITED STATES 1,576,749 PATENT OFFICE.

cnAaLns 1). KING, or RUTHERFORD, new JERSEY.

PNEUMATIC PISTOL AND GUN.

Application filed April 15, 1921, Serial No. 461,517. Renewed June 3, 1925.

To all whom it may concern:

Be it known that 1, CHARLES D. KIN-c, a citizen of the United States, residing at Rutherford, in the county of Bergen and State of New Jersey, have invented certain new and useful Improvements in Pneumatic Pistols and Guns, of which the following is a specification.

This invention relates to pneumatic pistols and guns, and its main object is to pro vide an improved device of this type embodying means whereby a piece of paper clamped across an aperture formed in a portion of the device, can he suddenly broken by compressed air, causing a loud report similar to that of a firearm. The invention relates especially to means for holding the paper, and also to the means of applying pneumatic pressure, together with the devices for bringing the pneumatic pressure suddenly into operation. 7

The means I prefer to employ for accomplishing the above object, together with other features of my invention, are illustrated in the drawing accompanying and forming part of this specification, and in which Figure 1 is a-longitudinal section of my improved pneumatic pistol or gun in its preferred form and in the set position thereof.

Fig. 2 is a side elevation ofthe same, and

Fig. 3 is a front end elevation of thesame.

Like characters of reference refer to like parts in all the figures of the drawings.

In the various figures of the drawings the numeral 2 designates a suitable plunger chamber, 3 designates the barrel, and 4 a s rin chamber which ma be made in an suitable manner such as formed within the barrel as shown 111 Fig. 1. The plunger chamber may be formed in any suitable way,

as for instance it may be cast, machinedor otherwise formed in a casing 5, and the barrel may be secured thereto in any suitable manner as by means of screws 6.

Any suitable means may be provided to hold the device when in use, such as the pistol grip or handle 7 formedv of sheet metal and secured to the casing by suitable means} such as rivets 8. i f

In theplunger chamber 2 is provided a plunger 9 which may be of any suitable form a d preferably has a foot 10 01 which? it slides along the bottom of the pl ng chamber: A pl g r rod 11 is conaeetedf' 'tqf passing it through a hole 12 in an extension I 13 of the plunger and securing it by means of a pin 14 as illustrated in Fig. 1. The said extension 13 extends through a slot 15 to bring it to the level of the rod 11. The plunger rod 11 passes through a hole in the partition 16 in the barrel, and is provided with a disk 17 at the forward end. A suitable spring such as 18 is held in the spring chamber 41-, and when said spring is compressed by pulling back on the handle 19 on the disk 17 and movable in the slot 20, the plunger is also pushed back by means of its rod 11, and can be caught by suitable let-oIl or trigger mechanism such as 23. The said mechanism embodies a latch portion 24L adapted to engagea projection 25 on the rear part of the plunger. A trigger 26 is formed integral with the-latch and is normally pressed against a pin 27 by means of a spring 28 secured in a recess 29 in the casing 5.

In the forward end of the plunger chamber2 is a threaded aperture 32 in which is 37 may be employed to keep the member 33 distended. The said member is compressible andwhen its rounded wall38 is pressed forward, it acts as a diaphragm to compress the air in the space 39 between said wall 38 and the paper C. I

Hinged to a suitable support, such as the forward part of the casing 5, is a clamping member 40, having a hole 41, a handle 42, and ears 43, through whichthe hinge pin 44 passesand secures it to the forward part of the casing 5. A rubber ring. 47 is fastened in a seat 48 so that the ring may clamp a "paper C against the face of the nut 34. A

spring catch 49 is secured by screws 52 to the casing 5 and is provided with a projection- 51 adapted to engage the lower'edge of the member when said member is-pressed against the nut 34, and holdszthe paper firmly clamped. v

'When the paper C is thus held-clamped, the plunger 9 can be set by pulling back on the handle 19 until the projection 25 is oaught'by the latch 24. On pulling-the trig- Cal ill

plunger-spring, a

Plun

ger 26, the plunger 9 is released and the spring 18 drives it against the compressible wall 38 of the member 33 which in turn moves towards the paper C compressingthe air in the space until the paper gives way with a loud report.

It is evident that the mere mechanism for giving the several movements to the different parts may be modified or changed in various ways and any suitable form of parts may be employed without departing from the spirit and principle of the invention and I do not therefore confine myself to the de tails of construction here shown.

What I claim is 1. In a device of the class described, the combination of a portion embodying a ,plunger chamber, a plunger movable therein, means to clamp film across an end of said chamber, a spring to move the plunger in the direct-ion of the film, a rubber diaphragm located in the chan' ber between the tilunger ,and the film, a holding ring for said diaphragm, and a coil spring between the diaphragm and said ring to distend the former.

2. The combination of a frame having a plunger chamber, a plunger adapted to be moved backward and forward in said chamber, a barrel having an axis-eccentric to that of the plungerchamber and an opening at the rear communicating with the plunger chamber, a spring-rod i-n-said barrel and connect ed to said plunger, a spring in said barrel to move said rod and plunger, film-holding means at the end of said plunger chamber, and let-oft mechanism for said plunger.

3. The combination of a frame having a plunger chamber and a slot over said chamber, a barrel over said chamber, a plunger having an extension movable in said slot, a spring held in said barrel, a spring-rod conuected to said plunger extension and to said spring, ilm-holding means at the end of said plungerchamber, and letotl' mechanism for said plunger.

st. The combination with a frame embodym a pl anger-chamber having an intcrmlllythreaded, annular recess at one end, a plungor, a plunger-spring, and trigger mechaof a diaphragm near the end of said into, said recess, a ring-nut to secure said skirt, a member havin an opening therethrougll and hinged at e end-of said chainher, and means to compress and. hold said ed member against said ring nt.

. The combii with a plunger, a framehaving a plunger chamber, a diaphragm near the end of Said chamber, and let-off mechanism for said includes a member hingedj'at one Isi in g a l ne- 'with the plunge .ritlie it t .o in.

, in t uiber provided with a Skirt extending and to be moved suddenly to juxtapo.

and spiiing, ota {holder uhicl'i er, an elastic ring attached to the hinged member in said recess, and catch mechanism whereby the elastic ring can be compressed and held against a film at the end of the plunger chamber.

6. The combination of a fran'ie embodying a plunger chamber, a plunger in said chami361, a barrel over said chaniiber, a plunger spring in said barrel suitably connected, a diaphragm having a skirt near the end of the plunger chamber, means to clamp the skirt of the diaphragm in such position, trigger mechanism for said plunger, and film-holding means for the diaphragm end of the plunger cha'n'iber which include an apertured member having an au nular recess on the film side, an elastic rubber ring in said recess, means to hinge the apertured member to the casing of the barrel and chamber, .anda spring-latch to hold the apertured member in position compressing said rubber ring.

7. The combination of a frame having a plunger chamber, film-holding means at one end of the plunger chamber, a barrel over the plunger chamber and having a longitudinal slot and .an opening in the rear lower part con'n'minicating with the plunger chamber, a plunger adapted to be moved backward and forward in the plunger chamber, a spring-rod in said barrel and connected to the plunger, a spring in said barrel to move said rod and plunger whereby the latter is moved toward the film-holding means, a handle secured to said rod and projecting through and movable in said slot for setting the spring-rod I and plunger, and let-oil mechanism for said plunger.

'8. The combination of a vframe having a plunger chamber, film-holding means at one end of the plunger chamber, a barrel over the plunger chamber and having an opening in the rear lower part communicating with the plunger chamber, a plunger ada OtGCl to be moved backward and forward he plunger chamber, a spring in the barrel to move said plunger towards the filmholding means, trigger mechanism for the plunger, and means to move the plunger into set 1'0121ti011 thereto.

'9. The combination of a member having a plunger chamber, film-h0lding means at one end thereof, and a ilunger in said chamber ereiu I on to the film and means for guidingthe plunger which means are substantially pa allel with d ext I to the plunger chamber and on lferent axis. 10. T he combination of a memberembod ing 'zi -pli.1i1ge 1.' chamber, a plunger in said (ii-amber, tilmsholdingmeans at one end of adapted to he moved back and fcrthtl said chamber, a vspring located above the plunger chamber exterior to and substantn lrf Pa allel was sail e a i t e s i axis, and connected to the plunger for moving it toward the film-holding means, trigger mechanism for the plunger, and means to move the latter into set relation thereto.

11. The combination with a member embodying a plunger chamber having an annular recess at one end distinct from the main bore oi the chamber, iiln'i-holding means at said end of the plunger chamber, a plunger in said chamber, means to more the plunger back and forth in said chamber including means to move it suddenly toward the film-holdingmeans, and trigger mechanism for said plunger, of a diaphragm having a holding portion in said recess and an annular member separate from the filmholding means, to secure said holding portion in said recess.

12. The combination with a member embodying a plunger chamber, a plunger in said chamber, a diaphragm at one end of the plunger chamber, means to move the plunger to and fro in said chamber includ ing means to move it suddenly toward the diaphragm, and trigger mechanism for said plunger, of film-holding means which include an aperture oscillating member having an annular recess and adapted to be held at said end of the plunger chamber and a resilient ring separate from the diaphragm, carried by said apertured member in said recess and adapted to clamp the film.

Signed at New York, in the county of New York, and State of New York, this 12th day of April, 1921.

CHARLES D. KING. 

